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KOHLER PRO6.4E Spec Review

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The KOHLER PRO6.4E is an open frame portable generator with a rated wattage of 5200 W and a starting wattage of 6400 W.

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Description

Zoom on the KOHLER PRO6.4E

In summary, the KOHLER PRO6.4E is a portable generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals who want to be able to deliver results, even during a power failure

In the following paragraphs, we shall explore the power characteristics, available outlets, portability and any additional features of the device, along with its emission compliance parameters.

Power & Run Time

The KOHLER PRO6.4E's engine, 277 cc KOHLER Command PRO® OHV 4-stroke, fueled by gasoline, can deliver 120/240V. It provides a running wattage of 5200W and reaches a peak wattage of 6400W.

The generator is rated for a noise of 73.2 dBA (just slightly more noisy than a vacuum cleaner). Its starting mechanisms include a convenient and easy-to-use electric starter (battery included) and a conventional pull-start mechanism.

With a full tank, the PRO6.4E can operate for around 15 hours at 50% load (fuel consumption around 0.53 GPH), thanks to its fuel capacity of 8 gallons. Refilling the fuel tank is facilitated by KOHLER’s Accu-Fill™ technology. It offers a 45% larger angled fuel inlet, which allows for an easier and safer pouring of gasoline as well as less spilling.

The quite high THD (<6%) of the PRO6.4E makes it unsuitable for powering sensitive of electronic devices.

The generator will allow you to simultaneously power various devices, for example:Note: All of these devices might not start simultaneously. Provided examples are based on a maximum load of 75 % and estimated wattages. With the help of our wattage calculator you can find out if this product suits your requirements.

Outlets

The control panel provides the upcoming 6 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle
120V 30A (L5-30R) receptacle

In addition, it provides 1 DC outlet: there's a 12V 8A receptacle with which you may charge your batteries with ease.

Even though this KOHLER generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor. Besides, due to the featured twist-lock L14-30R receptacle, the PRO6.4E is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.

Portability

With its dimensions of L29.4 x W21.4 x H22.3 in, the conventional, open frame design of the KOHLER PRO6.4E offers stability and allows the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

As the generator's weight is 198 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). However, its challenging mobility is solved by a wheel kit (⌀10") and a folding handle, which will ease its displacement, once it is on the floor.

Features

Panel of the KOHLER PRO6.4E

The PRO6.4E's control panel

To help you monitor the PRO6.4E's status and activity, its control panel is equipped with an illuminated data center (Maintenance Minder), giving you information on the lifetime run hours.

In addition to this info, a light indicator serves to show you when its oil levels are insufficient.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

As for its security measures, the device features an automatic low oil shut-off (Oil Sentry™ technology) and an overload protection (circuit breaker), letting you use it with a peace of mind.

Besides the usual set of documentation and user manual to get you promptly started, KOHLER also included a battery charging cables in the PRO6.4E's packaging.

Emissions

The KOHLER PRO6.4E is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

The KOHLER PRO6.4E versus other generators

The following charts are provided to give you an idea of how some of the key specs of the KOHLER PRO6.4E compare to generators of similar power (between 4500 and 5500 W).

  • At a dry weight of 198 pounds, the KOHLER PRO6.4E is one of the heavier devices which can produce between 4500 and 5500 running watts. In terms of weight, one of the champions in their power range is the WEN 56500, standing at just 119 lbs.
  • This generator, with its lowest possible noise rated at 73.2 dBA falls into the more noisy category, compared to other devise of a similar running wattage. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU7000iS, whose lowest noise levels reach just 52 dBA.
  • Since the PRO6.4E boasts with a run time of 15 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable output.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator This generator can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.53 GPH (gallon per hour) at 50% load, within the aforementioned wattage range. If fuel consumption is your top priority, we suggest to check out the Westinghouse WGen5500, which has a fuel consumption of only 0.44 GPH and thus, is one of the most efficient devices in our database.

Price comparison

As you can see from this dynamic chart, when compared to other 4500-5500W generators, the KOHLER PRO6.4E is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Electric start
  • High run time
  • Fuel efficient
WEAKNESSES:
  • No remote start
  • No spark arrestor
  • On the heavy side (198 lbs)
  • On the noisy side (73.2 dBA)

Do you own the KOHLER PRO6.4E and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Where to buy the KOHLER PRO6.4E?

You can easily buy your KOHLER generator online. You will benefit from a convenient delivery and avoid carrying the heavy package yourself. Here is a reliable online seller:
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Features and Specifications

General

InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine277 cc KOHLER Command PRO® OHV 4-stroke
Starting systemElectric, Recoil

Power

VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts5200 W
Starting watts6400 W
Running amps (@120/240V)43.3/21.7 amps
Peaks amps (@120/240V)53.3/26.7 amps
Run time @50% load15 h
Run time @25% loadN/A

Features

GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets2x Duplex 120V 20A (5-20R) GFCI
1x 120/240V 30A (L14-30R)
1x 120V 30A (L5-30R)
DC outlets1x 12V 8A
Data centerLifetime run hours
IndicatorsLow oil
Fuel tank8 gal
Fuel gaugeYes

Misc

Weight198 lbs
Dimensions (L x W x H)29.4 x 21.4 x 22.3 in
Noise (lower limit)73.2 dBA
THD< 6%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorNo
NeutralBonded to frame
Accessories includedBattery charging cables
Warranty3 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

About KOHLER

Kohler Co., founded in 1873 by John Michael Kohler, has been one of the leading US manufacturing companies for over a century, with its products ranging from furniture to power generators. Its American based Kohler Power division focuses on the latter, scaling from portable generators to industrial-scale devices. Its rich history and great reputation serve as a testament to the quality of their products. The company has in recent years outsourced some of its production overseas, to China, but US made generators can still be found among their product selection.

Warranty Information

The KOHLER PRO6.4E is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of KOHLER generators, please consult KOHLER's warranty policies. Alternatively, you can also contact their Customer Support: 1-800-544-2444.

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